Global Patent Index - EP 3748251 A4

EP 3748251 A4 20210331 - AIR CONDITIONER HEAT DISSIPATION STRUCTURE CONTROL METHOD AND SYSTEM

Title (en)

AIR CONDITIONER HEAT DISSIPATION STRUCTURE CONTROL METHOD AND SYSTEM

Title (de)

VERFAHREN UND SYSTEM ZUR STEUERUNG DER WÄRMEABFÜHRUNG EINER KLIMAANLAGE

Title (fr)

PROCÉDÉ ET SYSTÈME DE COMMANDE DE STRUCTURE DE DISSIPATION DE CHALEUR DE CLIMATISEUR

Publication

EP 3748251 A4 20210331 (EN)

Application

EP 19747960 A 20190128

Priority

  • CN 201810098748 A 20180131
  • CN 2019073368 W 20190128

Abstract (en)

[origin: EP3748251A1] Disclosed in the present invention are an air conditioning heat dissipation structure control method and a system, which include the steps obtaining a real-time temperature Te of the heat generating component; if T<sub>e</sub> > T<sub>e</sub><sup>d</sup>, opening the solenoid valve SV2 and adjusting the electronic expansion valve 4 to a preset initial opening degree; obtaining an update real-time temperature T<sub>e</sub> of the heat generating component after a setting time period; if the update real-time temperature T<sub>e</sub> > T<sub>max</sub>, performing the following steps every set period of time, obtaining a refrigerant temperature refrigerant temperature T<sub>in</sub> at the inlet end of the refrigerant heat dissipation pipe and a refrigerant temperature T<sub>out</sub> at the outlet end of the refrigerant heat dissipation pipe; calculating a real-time temperature difference ΔT<sub>real-time</sub> of the inlet end temperature T<sub>in</sub> and the outlet end temperature T<sub>out</sub>, wherein ΔT<sub>real-time</sub>= T<sub>out</sub>- T<sub>in</sub>; obtaining a preset target temperature difference ΔT<sub>target</sub> and calculating a deviation ΔT<sub>deviation</sub>, ΔT<sub>deviation</sub>=ΔT<sub>real-time</sub> -ΔT<sub>target</sub>; calculating a deviation change rate ΔΔT<sub>deviation</sub> = ΔT<sub>deviation</sub> - ΔT<sub>deviation '</sub>, and adjusting the opening degree of the electronic expansion valve based on the deviation ΔT<sub>deviation</sub> and the deviation change rate ΔΔT<sub>deviation</sub>, enables the temperature difference between the inlet end and the outlet end of the refrigerant heat dissipation pipe reaches the target temperature difference so as to ensure a good heat dissipation effect and keep the heat generating component working in a good condition and also lowers the cost by using refrigerant for transferring heat from the heat generating component. With the method, the reliability and stability of the air conditioning operation are improved, and the problem of poor heat dissipation reliability and high heat dissipation cost in the prior art is solved.

IPC 8 full level

F24F 13/30 (2006.01); F24F 1/24 (2011.01); F24F 11/64 (2018.01); F24F 11/84 (2018.01); F24F 11/88 (2018.01); F24F 140/20 (2018.01)

CPC (source: CN EP US)

F24F 11/64 (2017.12 - CN EP); F24F 11/84 (2017.12 - CN EP); F24F 11/88 (2017.12 - CN); F24F 13/30 (2013.01 - CN); F25B 41/20 (2021.01 - US); F25B 41/31 (2021.01 - US); F25B 41/40 (2021.01 - US); F25B 43/00 (2013.01 - US); F25B 49/02 (2013.01 - US); F24F 1/24 (2013.01 - EP); F24F 11/61 (2017.12 - EP); F24F 11/88 (2017.12 - EP); F24F 2140/20 (2017.12 - EP); F25B 41/34 (2021.01 - US); F25B 2400/23 (2013.01 - US); F25B 2600/2513 (2013.01 - US); F25B 2700/21 (2013.01 - US); Y02B 30/70 (2013.01 - EP)

Citation (search report)

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

Designated extension state (EPC)

BA ME

DOCDB simple family (publication)

EP 3748251 A1 20201209; EP 3748251 A4 20210331; CN 108489069 A 20180904; CN 108489069 B 20200818; US 11530855 B2 20221220; US 2021033321 A1 20210204; WO 2019149167 A1 20190808

DOCDB simple family (application)

EP 19747960 A 20190128; CN 201810098748 A 20180131; CN 2019073368 W 20190128; US 201916966693 A 20190128